#fenmath{
    width: 1300px;
    height: 500px;
    background-color: #f7e1b5;
    margin: 0 auto;

}
#fenmath h1{
    text-align: center;
}
#fenmath .biaoge{
    width: 400px;
    height: 300px;
    border: #00b3ee solid 2px;
    margin: 0 auto;
}
#fenmath .tijiao{
    width: 300px;
    height: 50px;
    margin: 20px auto;

}
#fenmath .tijiao .t1{
    width: 100px;
    background-color: #ffd37b;
}